1. You are driving your car in a circular path on level ground at a constant spe

Question

1. You are driving your car in a circular path on level ground at a constant speed of 20mph .

At the instant you are driving north, and turning left, are you accelerating? If so, toward what point of the compass (N, S, E, W) does your acceleration vector point? If not, why not?

1) A cyclist goes around a level, circular track at constant speed.

Do you agree or disagree with the following statement: "Because the cyclist's speed is constant, her acceleration is zero." Explain.

plz answer both for points

Explanation / Answer

1)

v = 20 mph = 20*1.6*5/18 = 8.89 m/s

yes.I am accelerating.

in uniform circular motion

instanntaneous acceleration direction is perpendicular to velocity

so acceration direction is towards west

2)

even the person moves with constant speed, the acceleration of the person is not zero.

accelaration depends on magnitude of velocity and direction.

any one of these two changes, we say that the body has acceleration.

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